Benchmark: create a list object filled by zero

bench_zerofill.py

# -*- coding: utf-8 -*-

###
### Benchmark: create a list object padding by zero
###

from benchmarker import Benchmarker

try:
    xrange
except NameError:
    xrange = range


N = 10000

with Benchmarker(10000, width=20) as bench:

    @bench('[0 for xrange]')
    def _(bm):
        for _ in bm:
            arr = [ 0 for i in xrange(N) ]

    @bench('[0] * n')
    def _(bm):
        for _ in bm:
            arr = [0] * N


###
### Result example
###
"""
$ python bench_zerofill.py
## benchmarker:         release 4.0.1 (for python)
## python version:      2.7.3
## python compiler:     GCC 4.6.3
## python platform:     Linux-3.2.0-29-generic-x86_64-with-Ubuntu-12.04-precise
## python executable:   /home/kwatch/exp/venv/bin/python
## cpu model:           Intel(R) Xeon(R) CPU X5675 @ 3.07GHz  # 3066.775 MHz
## parameters:          loop=10000, cycle=1, extra=0

##                        real    (total    = user    + sys)
[0 for xrange]          3.1055    3.0900    3.0900    0.0000
[0] * n                 0.4594    0.4600    0.4600    0.0000

## Ranking                real
[0] * n                 0.4594  (100.0) ********************
[0 for xrange]          3.1055  ( 14.8) ***

## Matrix                 real    [01]    [02]
[01] [0] * n            0.4594   100.0   676.0
[02] [0 for xrange]     3.1055    14.8   100.0
"""